Nut and bolt lock.



No. 657,256. Patented Sept. 4, I900.

C. M. TIPTON.

UNrTnn STATES PATENT OFFICE.

CHARLES M. TIPTON, OF RAPIDAN, VIRGINIA.

NUT AND BOLT LOCK.

SPECIFICATION forming 5m of Letters Patent No. 657,256, dated se temta'4, 1 900.

Application filed February 2, 1900, Serial No. 3,748. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES M. TIPTON, a citizen of the United States,residing at Rapidan, in the county of Oulpeper and State of Virginia,have invented certain new and useful Improvements in Nut and Bolt Locks;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

Thisinvention relates to nutand bolt locks, and in common with thisclass of devices aims to secure the nut and the bolt against relativecasual displacement after the nut has been turned up tight against theobject to be secured or fastened.

The improvement consists, primarily, of a nut having a transversekey-seat intersecting with the bolt-opening and a key to interlock withthe bolt and key-seat of the nut and having a cleft-terminal, which isspread or oppositely deflected when driving the key home, so as toprevent its accidental displacement, the nut having at the remote end ofthe key-seat a spreader in position to engage with the cleft-terminal ofthe key and effect a spreading of the cleft members, so as to effect thedesired result.

The improvement also consists in having the receiving end of thekey-seat of the nut of wedge form or similar construction to interlockpositively with the keyand in having the opposite or remote end of thekey-seat formed with divergent openings or passages separated by thespreader, which is located medially of the key-seat, so as to registerwith the cleft in the penetrating end portion of the key.

The improvement further consists of a key having its entrance end cleft,said cleft being flared to direct the spreader into the cleft whendriving the key home, said key having its opposite end ofapproximatelywedge form and provided with an oifstanding portion to receive the blowsof a hammer or like tool when it is required to remove the key.

For a full description of the invention and the merits thereof, and alsoto acquire a knowhedge of the details of construction of the means foreffecting the result, reference is to be had to the followingdescription and the drawings hereto attached.

While the essential and characteristic features of the invention arenecessarily susceptible of modification, still the preferred embodimentof the invention is illustrated in the accompanying drawings, inWl1lGl1- Figure 1 is a perspective view showing the application of theinvention. Fig. 2 is asection at a right angle to the axis of the bolt.Fig. 3 is a side elevation looking toward the endof the key having thewedge-shaped portion. Fig. 4 is a detail perspective view of the key.Fig. 5 is a detail perspective view of the end portion of the bolt.

Corresponding and like parts are referred to in the followingdescription and are indicatedin all the views of the drawings by thesame reference characters.

The bolt 1 and nut 2 may be of any pattern, size, or make, according tothe desired location and character of work. A groove or seat 3 is formedin the end of the bolt 1 and extends transversely thereof and may be ofany required depth. The nut 2 is provided with a transverse key-seat 4in position to register with the groove or key-seat of the bolt. The key5 is fitted into the seats 3 and 4 when in coincident relation and afterthe not 2 has been turned up tight upon the bolt. In the event of thebolt being loose when the nut has received the final turn it will benecessary to inter-pose one'or more washers of re- .quired thicknessbetween the nut and the object to be secured, and the requisitethickness of washer Will be determined by trial.

The groove or key-seat 4 intersects with the bolt opening of the nut 2and opens through the outer face of the nut at one end and is made ofWedge form or otherwise constructed at said end to make positiveinterlocking connection with the key when the latter has been properlypositioned. The opposite end portion of the key-seat 4 terminates indivergent openings or passages 6, separated by a cross-piece 7,whichconstitutes a spreader, the opposite side of said crosspiece or spreaderbeing beveled to an edge,

which faces toward the seat 4, so as to enter the cleft at the of thekey 5.

penetrating or entranceend The key 5 has an end portion cleft, asshown'at8, and the outer end of thecleft is. flared, asshown at 9', toadmit'of the-spreader -7 readily entering the cleft 8 when driving thekey 5 home. This cleft end 8 is reduced and is located at the terminalofthe key which is first introduced into the seat 4: and which isdesignated as the entrance orpenetrating end. The opposite end of thekey is of wedge form, as shown as 10, to interlock with thecorresponding end of the seat 4 and is also provided with an offstandingportion instrument when it is required to-dislodge the key 5, so as toadmit of the loosening of the nut when the bolt is required to beremoved.

The nut and bolt are used'in the well-known manner, it being necessaryto have the seats cause the portions adjacent to the cleft to beoppositely deflected and hold the key in place against accidentalslipping.

It is to be understood that one or more washers (not shown) are to beinterposed be tween the nut and the object to to befastcned in the eventof a space existing between said parts after the nut has been screwedhome to the proper position.

Having thus described the invention, what .is claimed as new, anddesired to be secured .by Letters Patent, is-- 1'. In a nut and boltlock,- a nut havinga transverse key-seat intersectingwith the boltopening and provided at one end with a spreader,,and a key adapted to befitted into saidseat and having a terminal portion cleft andconstructcdto bespread by engagement with the said spreader when driving the keyhome, substantially as set forth.

key being adapted to be forced into the keyseat and to have-the cleftportions spread by entering the divergent passages of the keyseat,substantially as set forth.

3. In a nut and bolt lock, a'nut having a transverse key-seat undercutat one end and divergent at the opposite end, a spreader at saiddivergent end of the key-seat, and a key having one end of approximatelywedge form and its opposite end cleft and adapted to be separated byengagement with the spreader,

I substantially as set forth. 11 to receive the blows of ahammer orother i 4. Ina nut and bolt look, a nut having a transversely-disposedkey-seat intersecting withthe bolt-opening, one end of the seat terminating in divergent passages and the oppo site end being ofapproximately wedge form and opening through the outer face of the nut,and a key havinga terminal portion cleft and having its opposite endportion of approximately wedge form and provided with lan offstandingport-ion, substantially as set forth.

5. In anut and bolt lock, a nut having a ftransversely-arranged key-seatintersecting lwith the bolt-opening, and provided at one endwith'divergent passages and at its oppo- Qsite end with: awedge-shapedportion, and a key having an end portion reduced and cleft, ,the outerend of the cleft being flared, and having the opposite end of the keyconstruct- .ed of wedge form and provided with an off- 1 standingportion, substantially as and for the Qpurposeset forth.

6. In. combination with a bolt having a groove-or seat in its threadedend, a nut hav- 1 ing atransverse key-seat to register with the grooveof the nut, one end of the seat being 'divergentand provided with aspreader, and a key adapted to be fitted into the registeriingseats ofthe bolt and nut and having a Icleft terminal port-ion, substantially asand:

for the purpose set forth.

In testimony whereof I affix my signature Qiu presence of two witnesses.

2. In a nutand bolt look, a nut, having a transversely-disposed key-seatintersecting with the bolt-opening and having an end portion.terminating in divergent passages, and i a key having a terminal portioncleft, said CHARLES M. TIPTON.

LL. s]

